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CMediaType::IsValid (Windows Embedded CE 6.0)

1/6/2010

Queries whether the object has a valid major type.

Syntax

BOOL IsValid( ) const;

Parameters

None.

Return Value

Returns one of the following values.

Value Description

TRUE

CMediaType object has a valid major type.

FALSE

CMediaType object does not have a valid major type.

Remarks

When CMediaType objects are constructed, their GUIDs are initialized with GUID_NULL (unless they are constructed based on another AM_MEDIA_TYPE structure or CMediaType object).

This member function is useful for discovering if the object has been correctly initialized.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later

See Also

Reference

CMediaType Class